About Timberline Patio Covers

Seattle, Bellevue and greater Puget Sound area premier builder creating outdoor living dreams.

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About Timberline Patio Covers

Timberline Patio Covers originally specialized in an under deck ceiling product called Undercover Systems. This product was patented and franchised in the early 90’s and continues to outperform other under deck drainage systems nationwide. When it was brought to the Pacific Northwest in 2007 it was a quick notice that customers were also interested in having dry space in this climate that did not have an application that worked with the UnderCover system. Having exhibited trustworthy and reliable business practices with Undercover Systems, in 2009 the company started to transform and brought on the name PCF Decks & Concrete, then PCF Custom Outdoor living and in 2016 it was determined to create an entire division dedicated to building outdoor roof structures, decks, outdoor kitchens, outdoor fireplaces, outdoor firepits, and also incorporating flatwork. Undercover Systems is still around under same management but independent and only specializes in the Underdeck system as a product that of course is available to all Timberline Customers.

Serving Your Neighborhood in the Puget Sound Area

  • Seattle
  • Bellevue
  • Bremerton
  • Bainbridge Island
  • Issaquah
  • Tacoma
  • Lakewood
  • Dupont
  • Kent
  • Everett
  • Puyallup
  • Arlington
  • Kirkland
  • Marysville
  • Lynnwood
  • Bothell
  • Redmond
  • SeaTac
  • Bonney Lake
  • Auburn
Patio Cover extending from house

Our Promise To You

At Timberline Patio Covers we strive to provide you with the most professional experience possible. Our keys to delivering this high level of service ensure that you will be happy with every project.

  • ZQuality
  • ZReliability
  • ZCommunication
  • ZSafety
  • ZTidiness
  • ZIntegrity
Timberline Values


Timberline Patio Covers is the leader in high-quality outdoor roof structures. Outdoor roof structures extend your living space outside your home. Whether you’re having a barbecue with family and friends or relaxing with a book, patio covers protect your deck or patio from the sun, rain, snow, and other elements.

We build custom roof structures and deck covers to fit every budget. Create a new addition to accommodate a front porch, backyard patio, or second story deck. Build a freestanding roof or gazebo. Add skylights, recessed lighting, heaters, fans, TV and speaker systems.

Timberline Patio Covers is a trusted and professional general contractor in the Seattle area. We are able to extend the existing roof line to form the covering of your porch or build a new framed structure in your backyard that is free standing.

Our talented team of designers, project managers, and deck cover contractors provide a wealth of experience that is unmatched in the Seattle outdoor living industry. With us, the construction process moves seamlessly from design to installation.

Outdoor Kitchens & Fireplaces

Let Timberline Patio Covers extend your living and entertaining space with an outdoor kitchen, fire pit or fireplace that suits your lifestyle needs. Let our team of talented designers, project managers, and contractors provide a wealth of experience that is unmatched among Seattle’s outdoor living design companies. With Timberline Patio Covers, the construction of your outdoor entertainment space will move seamlessly from design to installation.

Connect With Us Online

Be sure to connect with us on all our social media platforms to get tips, tricks, how-to's and more from our pro builders and staff.

Let us show you why Timberline Patio Covers has become the go-to source for outdoor kitchens & grills in the Puget Sound area. Call us at (425) 522-8775  or contact us online to schedule an ON-SITE ESTIMATE.